Mucky Creek Subwatershed Sta 41+70 Reservoir Report
Last Updated: December 14, 2025
Located in Monona County, Iowa, the Mucky Creek Subwatershed Sta 41+70 is a vital water resource managed by the local government for purposes such as fire protection, stock, and small fish pond management.
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Summary
Constructed in 1965, this earth dam stands at a height of 38 feet and spans a length of 316 feet, with a storage capacity of 42 acre-feet. With a low hazard potential and moderate risk assessment, this structure plays a crucial role in flood risk reduction in the area.
Managed by the Iowa Department of Natural Resources, this dam is regulated, permitted, inspected, and enforced to ensure its safety and functionality for the community. The Mucky Creek Subwatershed Sta 41+70 is situated along the TR-MAPLE RIVER, contributing to the overall water management in the region. Despite being uncontrolled, the dam's spillway width and hydraulic features are not specified, indicating the need for further assessment and potential improvements to enhance its performance.
With its location in Mapleton and the oversight of the USDA NRCS, the Mucky Creek Subwatershed Sta 41+70 serves as a critical infrastructure for water resource and climate enthusiasts. As part of the local government's efforts in water management, this dam plays a significant role in maintaining water quality, regulating floods, and supporting agricultural activities in the region. Continued monitoring and maintenance of this structure are essential to ensure its long-term sustainability and effectiveness in water resource management.
Year Completed |
1965 |
Dam Length |
316 |
Dam Height |
38 |
River Or Stream |
TR-MAPLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
1.8 |
Drainage Area |
0.61 |
Nid Storage |
42 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
West Fork Ditch At Hornick
|
80cfs |
Soldier River At Pisgah
|
112cfs |
Little Sioux River At Correctionville
|
327cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Mucky Creek Subwatershed Sta 41+70